U.S. patent number 7,621,821 [Application Number 12/061,995] was granted by the patent office on 2009-11-24 for golf club interchanging connection structure (i).
This patent grant is currently assigned to Advanced International Multitech Co., Ltd.. Invention is credited to Cheng-Tao Lee, Liang-Ho Tsai.
United States Patent |
7,621,821 |
Tsai , et al. |
November 24, 2009 |
Golf club interchanging connection structure (I)
Abstract
A golf club interchanging connection structure for interchanging
a club head and a shaft, in which a connecting part is in the club
head and a female screw is formed in the connecting part, includes
a nut hole position part, a club sleeve, and a screw. The nut hole
position part includes a male screw on an outer surface thereof and
a flange. The flange includes a leaning surface and a positioning
hole. The male screw is screwed with the female screw in the
connecting part. The club sleeve is placed within the connecting
part and has one end being fixed with the shaft and the other end
having a nut hole. The screw including a screw head is positioned
through the positioning hole and screwed with the nut hole, and the
screw head leans against the leaning surface to lock the shaft
connected to the club sleeve.
Inventors: |
Tsai; Liang-Ho (Kaohsiung,
TW), Lee; Cheng-Tao (Kaohsiung, TW) |
Assignee: |
Advanced International Multitech
Co., Ltd. (Kaohsiung, TW)
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Family
ID: |
40932254 |
Appl.
No.: |
12/061,995 |
Filed: |
April 3, 2008 |
Prior Publication Data
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Document
Identifier |
Publication Date |
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US 20090197695 A1 |
Aug 6, 2009 |
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Foreign Application Priority Data
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Feb 5, 2008 [TW] |
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97202588 U |
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Current U.S.
Class: |
473/306; 473/312;
473/307 |
Current CPC
Class: |
A63B
53/02 (20130101); A63B 60/00 (20151001) |
Current International
Class: |
A63B
53/06 (20060101) |
Field of
Search: |
;473/288,296,298-299,306-307,312 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Blau; Stephen L.
Attorney, Agent or Firm: Morris, Manning & Martin LLP
Xia; Tim Tingkang
Claims
What is claimed is:
1. A golf club interchanging connection structure, for
interchanging a club head and a shaft of a golf club, wherein a
connecting part is formed or jointed in the club head and a female
screw is formed in the connecting part, comprising: a nut hole
position part, comprising a flange and a male screw on an outer
surface of the nut hole position part, wherein the flange includes
a leaning surface and a positioning hole going through the leaning
surface, and the male screw is screwed with the female screw in the
connecting part; a club sleeve, placed within the connecting part,
and having one end being connected to and fixed with the shaft and
an other end having a nut hole; and a screw, comprising a screw
head, wherein the screw is positioned through the positioning hole
and screwed with the nut hole of the club sleeve, and the screw
head leans against the leaning surface to lock the shaft connected
to the club sleeve, wherein a tapered slot is located in the nut
hole position part, and its inner diameter of one end close to the
flange is smaller than that of an other end away from the flange,
and the end having the nut hole of the club sleeve is configured
into a tapered shape corresponding to the tapered slot in the nut
hole position part, and the screw is screwed with the nut hole of
the club sleeve to lock the end of the club sleeve in the tapered
slot of the nut hole position part.
2. The golf club interchanging connection structure as claimed in
claim 1, wherein the flange is formed inside the nut hole position
part.
3. The golf club interchanging connection structure as claimed in
claim 1, wherein the flange is formed on one end of the nut hole
position part, and the leaning surface is a surface of the nut hole
position part.
4. The golf club interchanging connection structure as claimed in
claim 1, wherein the club sleeve has an accommodation space
corresponding to the shaft, and the shaft is placed into the
accommodation space and bonded to the club sleeve.
5. The golf club interchanging connection structure as claimed in
claim 1, wherein the club sleeve has an accommodation space
corresponding to the shaft, and the shaft is placed into the
accommodation space and welded to the club sleeve.
6. The golf club interchanging connection structure as claimed in
claim 1, wherein the club sleeve closely contacts with an inner
surface of the connecting part in the club head.
7. A golf club interchanging connection structure, for
interchanging a club head and a shaft of a golf club, wherein a
connecting part is formed or jointed in the club head and a female
screw is formed in the connecting part, comprising: a nut hole
position part, comprising a flange and a male screw on an outer
surface of the nut hole position part, wherein the flange includes
a leaning surface and a positioning hole going through the leaning
surface, and the male screw is screwed with the female screw in the
connecting part, and wherein a tapered slot is located in the nut
hole position part, and its inner diameter of one end close to the
flange is smaller than that of another end away from the flange; a
club sleeve, placed within the connecting part, and having one end
being connected to and fixed with the shaft and an other end having
a nut hole; a screw, comprising a screw head, wherein the screw is
positioned through the positioning hole and screwed with the nut
hole of the club sleeve; and a gasket placed between the screw and
the leaning surface.
Description
This application claims the benefit of Taiwan Patent Application
No. 097202588, filed on Feb. 5, 2008, which is hereby incorporated
by reference for all purposes as if fully set forth herein.
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a golf club interchanging
connection structure, and more particularly to an interchanging
connection structure for interchanging a club head and a shaft of a
golf club.
2. Related Art
As the golf sport develops vigorously, the structure and material
of the golf club have also developed accordingly. In order to cater
to each golfer, and to enable the golfer to select a suitable
combination of a club head and a shaft according to the specific
state during striking, golf-club manufacturers exert their efforts
in developing a golf club with a quick head-shaft interchanging
function.
Referring to FIG. 1, it is a schematic view of a conventional golf
club interchanging connection structure. In U.S. Pat. No.
7,083,529, a golf club 10 with a quick interchanging function is
proposed, which includes a club head 12 and a shaft 14, and the
club head 12 and the shaft 14 are interchanged quickly through an
interchanging connection structure 16. The interchanging connection
structure 16 includes a club sleeve 18, a tube seat 20, and a screw
22. One end of the club sleeve 18 has an opening 24, the shaft 14
is placed into the opening 24 and bonded in the club sleeve 18. The
tube seat 20 is embedded into the club head 12 and bonded in the
club head 12. After the club sleeve 18 is placed into the tube seat
20, the screw 22 is used to lock the club sleeve 18 to the tube
seat 20, so as to quickly interchange the club head 12 and the
shaft 14.
However, when the internal portion of the tube seat 20 becomes
deformed since the club head 12 is influenced by the outside force,
such as collision, the club sleeve 18 may be hard to be placed into
the tube seat 20. Since the tube seat 20 in the conventional art is
embedded in the club head 12 and fixed by bonding, it will be very
difficult to repair or replace the tube seat 20.
SUMMARY OF THE INVENTION
Accordingly, in order to solve the above problems, the present
invention is directed to a golf club interchanging connection
structure, in which a male screw of a nut hole position part is
screwed with a female screw in a connecting part of a club head,
which is helpful to disassemble the nut hole position part for
executing repair or replacement when the nut hole position part is
broken.
In order to achieve the objective, the present invention provides a
golf club interchanging connection structure, which is applied for
interchanging a club head and a shaft of a golf club. Therein, a
connecting part is formed or jointed in the club head and a female
screw is formed in the connecting part. The golf club interchanging
connection structure includes a nut hole position part, a club
sleeve, and a screw. The nut hole position part includes a flange
and a male screw on an outer surface of the nut hole position part.
The flange includes a leaning surface and a positioning hole
located in the leaning surface, and the male screw is screwed with
the female screw in the connecting part. The club sleeve is placed
within the connecting part and has one end being connected to and
fixed with the shaft and the other end having a nut hole. The screw
including a screw head is positioned through the positioning hole
and screwed with the nut hole of the club sleeve, and the screw
head leans against the leaning surface to lock the shaft connected
to the club sleeve.
With the golf club interchanging connection structure of the
present invention, the male screw of the nut hole position part is
screwed with the female screw in the connecting part of the club
head, which is helpful to disassemble the nut hole position part
for executing repair or replacement when the nut hole position part
is broken.
BRIEF DESCRIPTION OF THE DRAWINGS
The present invention will become more fully understood from the
detailed description given herein below for illustration only,
which thus is not limitative of the present invention, and
wherein:
FIG. 1 is a schematic view of a conventional golf club
interchanging connection structure;
FIG. 2 is an exploded view of a golf club interchanging connection
structure according to an embodiment of the present invention;
and
FIG. 3 is a cross-sectional view of connecting a club head with a
shaft through the golf club interchanging connection structure
according to the embodiment of the present invention.
DETAILED DESCRIPTION OF THE INVENTION
In order to make the objective, structure, and function of the
present invention be more comprehensible, a detailed description is
given below with reference to the embodiments and accompanying
drawings.
Referring to FIG. 2, it illustrates an exploded view of a golf club
interchanging connection structure according to an embodiment of
the present invention. The golf club interchanging connection
structure 30 in the embodiment of the present invention is used to
interchange a club head 32 and a shaft 34 of a golf club, in which
a connecting part (not shown in FIG. 2) is formed or jointed in the
club head 32 and a female screw (not shown in FIG. 2) is formed in
the connecting part.
The golf club interchanging connection structure 30 in the
embodiment of the present invention includes a nut hole position
part 36, a club sleeve 38, and a screw 40. Therein, the nut hole
position part 36, which is made of, for example, iron, stainless
steel, pure titanium, titanium alloy, aluminum, or aluminum alloy,
includes a flange 42 and a male screw 44 on an outer surface of the
nut hole position part 36. The flange 42 of the embodiment is
formed inside the nut hole position part 36, and includes a leaning
surface 46 and a positioning hole 48 located in the leaning surface
46. The male screw 44 corresponds to the female screw in the
connecting part. It should be noted that, a flange could be formed
on one end of a nut hole position part in other embodiments, and a
leaning surface is a surface of the nut hole position part.
One end of the club sleeve 38 is connected to and fixed with the
shaft 34 and the other end includes a nut hole 50. Therein, the end
of the club sleeve 38 having the nut hole 50 is configured into a
tapered shape 52. In addition, the club sleeve 38 is made of, for
example, iron, stainless steel, pure titanium, titanium alloy,
aluminum, or aluminum alloy.
The screw 40, which is made of, for example, iron, stainless steel,
pure titanium, titanium alloy, aluminum, or aluminum alloy,
includes a screw head 54. The screw 40 corresponds to the nut hole
50 of the club sleeve 38.
Referring to FIG. 3, it illustrates a cross-sectional view of
connecting the club head with the shaft through the golf club
interchanging connection structure according to the embodiment of
the present invention. The male screw 44 on the outer surface of
the nut hole position part 36 is screwed with the female screw 58
of the connecting part 56. Therein, a tapered slot 60 is located in
the nut hole position part 36, and its inner diameter of one end
close to the flange 42 is smaller than that of the other end away
from the flange 42. The tapered slot 60 corresponds to the end of
the club sleeve 38, which is configured into the tapered shape
52.
Afterward, the club sleeve 38 is placed within the connecting part
56, in which the end configured into the tapered shape 52 is placed
into the tapered slot 60 of the nut hole position part 36. In
addition, the club sleeve 38 has an accommodation space 62
corresponding to the shaft 34, and the shaft 34 is placed into the
accommodation space 60 and bonded or welded to the club sleeve 38.
It should be noted that, the club sleeve 38 closely contacts with
an inner surface of the connecting part 56 in the club head 32 to
increase a rotation-resistant force for the shaft 34 and the club
head 32.
The screw 40 is positioned through the positioning hole 48 and
screwed with the nut hole 50 of the club sleeve 38 to lock the end
of the club sleeve 38 in the tapered slot 60 of the nut hole
position part 36, and the screw head 54 leans against the leaning
surface 46 to lock the shaft 34 connected to the club sleeve 38. In
addition, The present invention could further include a gasket (not
shown in FIG. 3) placed between the screw 40 and the leaning
surface 46 to increase a rotation-resistant force for the screw 40
and the club sleeve 38.
As compared with the conventional art, in the golf club
interchanging connection structure of the present invention, the
male screw of the nut hole position part is screwed with the female
screw in the connecting part formed or jointed in the club head,
which is helpful to disassemble the nut hole position part for
executing repair or replacement when the nut hole position part is
broken. Furthermore, when the interior of the club head becomes
deformed, it only needs to shape the connecting part in the club
head according to the structure of the present invention by simply
utilizing a shaping knife or a tapping knife for processing.
It will be apparent to those skilled in the art that various
modifications and variations can be made to the structure of the
present invention without departing from the scope or spirit of the
invention. In view of the foregoing, it is intended that the
present invention cover modifications and variations of this
invention provided they fall within the scope of the following
claims and their equivalents.
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